Parametric design is a modeling method. It uses important geometric parameters to construct and modify geometric model.
参数化设计是一种使用重要几何参数快速构造和修改几何模型的造型方法。
This paper has described the rigorous methods of both design and geometric modeling, which can be used in the CAD for heavy casting and forging as well as heavy machinery.
本文介绍了严密精确的设计和几何造型方法，可用于大型铸锻件和重型机械的CAD和计算机辅助设计。
The traditional modeling techniques are mainly focused on physical modeling and geometric representation, so it makes the conceptual design of products not obtain effective technique support.
由于传统建模技术主要集中于物理建模和几何表示方面，致使产品概念设计阶段缺乏有力的技术支持。
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